The principle behind a Dynaudio tweeter

Summary

The video is a technical Q&A about Dynaudio’s soft-dome tweeter design and its new Esotar Forty tweeter, introduced for the Special Forty anniversary loudspeaker.

Coated soft domes

Dynaudio describes its coated fabric dome as a balanced design: it is light, responsive, and well damped. Unlike a hard metal or plastic dome, fabric is less prone to producing its own audible resonance.

Esotar² design

The powerful neodymium magnet in the Esotar² is intended to control the lightweight voice coil precisely—not simply to make the speaker louder. Dynaudio also emphasizes the importance of the dome, coating, and other design details. The company develops its tweeters in-house rather than relying on off-the-shelf parts.

Esotar Forty compared with Esotar²

The Esotar Forty’s redesigned yoke improves airflow behind the dome, helping reduce rear reflections and resonance. The stated goals are to lower distortion and improve integration with the midrange and woofer.

The discussion also notes that the Esotar² has a more advanced aluminium back chamber, while the Esotar Forty uses a plastic one. The speakers describe the two tweeters as having different strengths rather than declaring one universally better. The Esotar Forty is exclusive to the Special Forty.

Dome versus ribbon tweeters

The speakers argue that a tweeter must perform well both on- and off-axis and integrate smoothly with the woofer. In their view, a ribbon tweeter may have strengths on its own, but its dispersion can make seamless integration with a conventional woofer more difficult.

Materials and development

Dynaudio explores materials through simulations, measurements, and prototypes, but considers listening tests essential. Measurements can be quick; evaluating changes by listening takes much longer. The ability to build and modify its own tweeters is presented as a key part of the development process.

LYD and studio monitors

The LYD range uses the same basic soft-dome technology as Dynaudio’s home speakers, though some models have different driver specifications. LYD tweeters do not use neodymium magnets, partly because active nearfield monitors have less need for high sensitivity or very high output.

The speakers stress that model-specific requirements—not simply whether a product is “pro” or “home”—determine the differences.

Reviews, guides, or tutorials

No formal review or step-by-step guide is presented. The video is a product-focused technical discussion and comparison of tweeter designs.

Main speakers and sources

• Roland Hoffman, Senior Manager at the Dynaudio Academy
• Otto Jørgensen, Dynaudio Product Manager
• Dynaudio live broadcast from the 2017 High End show in Munich